Pictured is Kalevi Häkkinen, one of the earliest proponents of speed skiing, the fastest non-motorized sport on land. Kalevi himself hit 125 MPH at the 1992 Olympics (at 64 years old), likely much faster than his practice car.

Which, by the way, can anyone else identify it? It took four of us an hour to correctly ID it. Anyone want to take a try in the comments below? (Hat tip to tionashoexpe!)